AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If DNA has a strand with a sequence of GCT-ACC-AAT-GCG, the replicated DNA strand would be:
A
GCG-TAA-CCA-TCG
B
CGA-UGG-UUA-GCG
C
CGA-TGG-TTA-CGC
D
CGG-TAA-TAA-CGC
Explanation: 

Detailed explanation-1: -Answer and Explanation: If the DNA sequence GGCATGCCTATGCGA is transcribed into mRNA, the mRNA strand will contain bases complementary to the DNA sequence.

Detailed explanation-2: -Recall that adenine nucleotides pair with thymine nucleotides, and cytosine with guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT (Figure 9.2. 1).

Detailed explanation-3: -What is the transcription product of the sequence GCTAGCGATGAC? four amino acids.

Detailed explanation-4: -If one strand of DNA is CGGTAC, the corresponding strand would be: E. GCCATG. We can determine this due to the complementary base pairing that occurs in DNA: C base pairs with G, and A base pairs with T.

There is 1 question to complete.